MEDIUM
8th CBSE
IMPORTANT
Earn 100

Melamine is a thermosetting plastic; for it one can say that-
(a)it can be easily remoulded on heating.
(b)it cannot resist fire.
(c)it has a cross-linked arrangement of molecules.
(d)its 'tolerance', towards heat is very much lower than those of other plastics.

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Important Questions on Synthetic Fibres and Plastics
MEDIUM
8th CBSE
IMPORTANT
Which of the following is a correct statement about synthetic plastics?

EASY
8th CBSE
IMPORTANT
Define the term : Synthetic fibres

EASY
8th CBSE
IMPORTANT
Write two uses of rayon.

EASY
8th CBSE
IMPORTANT
Name two to three articles that can be made from nylon.

EASY
8th CBSE
IMPORTANT
Why are clothes made from synthetic fibres uncomfortable in summer?

MEDIUM
8th CBSE
IMPORTANT
Give two examples each of thermoplastics and thermosetting plastics.

MEDIUM
8th CBSE
IMPORTANT
How is a 'regenerated fibre' different from a true synthetic fibre? Give one example of each of these two types of fibres.

MEDIUM
8th CBSE
IMPORTANT
Why do clothes made of nylon last longer?
